A Randomized Trial of a Biolimus-Coated Balloon Versus POBA in Small Vessel Coronary Artery Disease

This study is a prospective, multicenter, randomized, blind, parallel and superiority test study. It is planned to select 206 cases of subjects with small coronary artery vessel disease who meet the inclusion/exclusion criteria. They are randomly divide them into Biolimus release coronary balloon catheter treatment group and plain old balloon angioplasty catheter (Powerline) treatment group according to the ratio of 1:1. All subjects accept clinical follow-up after operation, at 30 days, 6 months, 9 months and 12 months after operation. Follow-up with angiography is conducted at 9 months. The late lumen loss in diseased segment at 9 months after operation is the primary endpoint.